<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title>web site</title>
	</head>
	<body>
		<script>
// 			var bool1 = confirm("我们结婚吧？");
// 			console.log(bool1);
// 			
// 			var bool2 = alert("我们结婚吧？");
// 			console.log(bool2);
// 			
// 			var bool3 = prompt("请输入： ");
// 			console.log(bool3);

			var aaa = fn();
			console.log(aaa);
			function fn(){
				var bbb = 111;
				return bbb;
			}
		</script>
	</body>
</html>